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D
- the type of element which can be written and read by this factorypublic interface DockFactory<D extends DockElement>
A DockFactory has the ability to store and load instances of one
subtype of DockElement
.
Method Summary | |
---|---|
String |
getID()
Gets the unique name of this factory. |
D |
read(Map<Integer,Dockable> children,
boolean ignoreChildren,
DataInputStream in)
Reads a DockElement which was earlier stored by a DockFactoy
of the same type. |
void |
read(Map<Integer,Dockable> children,
boolean ignoreChildren,
D preloaded,
DataInputStream in)
Reads a DockElement which was earlier stored by a DockFactory
of the same type. |
void |
write(D element,
Map<Dockable,Integer> children,
DataOutputStream out)
Saves the properties of a DockElement. |
Method Detail |
---|
String getID()
void write(D element, Map<Dockable,Integer> children, DataOutputStream out) throws IOException
DockStation
, then the factory has to store the location
of the children. The factory can use the unique ids of the children
which are stored in the map children
. The factory
don't have to store any information about the children itself.element
is a Dockable, no information about the
parent has to be stored.
element
- the element to savechildren
- a list of unique names for each child of element
,
may be null
if element
is not a DockStation.out
- a stream to write information
IOException
- if the element can't be savedD read(Map<Integer,Dockable> children, boolean ignoreChildren, DataInputStream in) throws IOException
DockElement
which was earlier stored by a DockFactoy
of the same type.
children
- the known children of the element that is read. It's
possible that not all children that were stored last time could be
read again. In this case the map will contain no or a null
entry.ignoreChildren
- true
if the layout of the current
children should not be changed. The map children
is empty
if ignoreChildren
is true
.in
- the stream to read from. The number of bytes read don't have
to be the same number as the bytes that were written.
null
is a valid
result and indicates that an element is no longer available.
IOException
- if the element can't be read from the streamvoid read(Map<Integer,Dockable> children, boolean ignoreChildren, D preloaded, DataInputStream in) throws IOException
DockElement
which was earlier stored by a DockFactory
of the same type. The contents have to be written into an already
existing element.
children
- the known children of the element that is read. It's
possible that not all children that were stored last time could be
read again. In this case the map will contain no or a null
entry.ignoreChildren
- true
if the layout of the current
children should not be changed. The map children
is empty
if ignoreChildren
is true
.preloaded
- an element which was created elsewhere and now
has to be set up correctly by this factoryin
- the stream to read from. The number of bytes read don't have
to be the same number as the bytes that were written.
IOException
- if the element can't be read from the stream
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